WEP, short for Wireless Encryption Protocol.
A form on encryption for wireless networks, although it has been shown to be crackable with the right programs.
Comes in 64-bit and 128-bit keys.
It has been replaced by the much stronger WPA.

Hacker1: Dude, I just cracked that AP down the street!
Hacker2: I thought it used WEP?
Hacker1: Yeah, just left Airsnort on for a few days